Home / 27,951.86-38,574.16-15,376.61

Finding the Fourth Proportional to 27,951.86, 38,574.16 and 15,376.61

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Solution

The fourth proportional to 27,951.86, 38,574.16 and 15,376.61 is: 21,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,951.86 : 38,574.16 = 15,376.61 : x
  2. Step 2: Convert to fraction form
    27,951.86/38,574.16 = 15,376.61/x
  3. Step 3: Cross multiply
    27,951.86x = 38,574.16 × 15,376.61
  4. Step 4: Simplify right side
    27,951.86x = 593,139,814.40
  5. Step 5: Solve for x
    x = 593,139,814.40/27,951.86
  6. Step 6: Final answer
    x = 21,220.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.